EP 3631985 A1 20200408 - METHOD AND ARRANGEMENT FOR WIDEBAND GENERATION OF IQ SIGNALS, IN PARTICULAR IN MULTICHANNEL SYSTEMS
Title (en)
METHOD AND ARRANGEMENT FOR WIDEBAND GENERATION OF IQ SIGNALS, IN PARTICULAR IN MULTICHANNEL SYSTEMS
Title (de)
VERFAHREN UND ANORDNUNG ZUR BREITBANDIGEN ERZEUGUNG VON IQ-SIGNALEN, INSBESONDERE IN MEHRKANAL-SYSTEMEN
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR LA GÉNÉRATION DE SIGNAUX IQ DANS UNE BANDE DE FRÉQUENCE LARGE, EN PARTICULIER DANS DES SYSTÈMES MULTICANAUX
Publication
Application
Priority
- DE 102017208904 A 20170526
- EP 2018063074 W 20180518
Abstract (en)
[origin: WO2018215334A1] A method for wideband generation of IQ signals involves a reference signal initially having its frequency doubled and subsequently being supplied to a master-slave D-type flip-flop (DIV2) in order to obtain an I component and a Q component of the reference signal. In one configuration, the D-type flip-flop (DIV2) is operated without a feedback path and instead the reference signal is supplied to the data input (D) of the D-type flip-flop (DIV2) with a phase shift that compensates for a phase shift caused by the frequency doubling. In this manner, a phase uncertainty between the individual channels in multichannel systems is avoided. In another configuration, the reference signal is split upstream of the circuit for IQ signal generation and firstly provided to the frequency doubler (X2) and secondly, after phase shifting, provided to one or two mixers (MixI, MixQ), which each down-convert the reference signal with either the I signal or the Q signal generated downstream of the master-slave flip-flop (DIV2) and thus each generate a DC signal indicating whether the I and Q signals have the phase uncertainty 0° or 180°. This information is then used to compensate for the phase uncertainty in the I and Q signals.
IPC 8 full level
H03H 17/08 (2006.01); H03K 5/15 (2006.01)
CPC (source: EP)
H03H 17/08 (2013.01); H03K 5/15033 (2013.01); H03K 3/0372 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102017208904 A1 20181129; EP 3631985 A1 20200408; EP 3631985 B1 20240501; WO 2018215334 A1 20181129
DOCDB simple family (application)
DE 102017208904 A 20170526; EP 18729343 A 20180518; EP 2018063074 W 20180518